Garbage furnace



Feb. 1 8, 1930. w. H. cARRlNGToN GARBAGE FURNACE Filed oct. 2s, '192e MM A.; .1 e. f/y//vv///W a w y Patented F eb. 18, 1930 atar FFME

GARBAGE 'FUR-NACE Application led October 2S, 1928. Serial No. 314,504.

The `object which I have in View is the provision of a compact and inexpensive furnace for the consumption of garbage vand other Waste, which is especially adapted for homes, hotels, hospitals and other institutions, and the like, and which may be erected and satisfactorily operated within the buildmg.

The furnace isparticularly adapted and arranged for burning solid fuel, such as coal.

in the accompanying drawings, wherein I have illustrated a vpractical embodiment of the principles of my invention, Fig. 1 is a vertical section of the furnace taken along Fig. 2 is a horizontal section of the furnace taken along the line 2 2 in Fig. l.

Fig. 3 is a vertical section taken along the line 3-3 in Fig. 2.

Fig. 4 is a vertical section taken along the line 4 4 in Fig. 2.

Figs. 5 and 6 are front elevations on reduced scale showing different characters of stack connections.

rlhe furnace may be and preferably is built of brick, the inner wall surfaces being of refractory or fire clay brick while the outer wall surfaces may be of cheaper building brick.

The general cross sectional shape of the furnace is rectangular and preferably approximately square.

The interior of the furnace is divided by vertical partition Walls into four divisions, the fuel chamber l; the garbage combustion chamber 2; the down flue 3 and the escape stack 4.

'lhus the partition wall 5 separates the chambers 1 and 2,- the partition Wall 6 forms 9 the rear Walls of the chambers 1 and 2 and the front Walls of the flue 3 and the stack 4,

while the partition 7 separates the flue 3 and the stack 4.

The chamber 1 is preferably narrower than.

5 the chamber 2, and the stack 4 narrower than the down lue 3. The chambers 1 and2are of greater depth from front to rear than thev dovvn flue and stack.

The chamber 1 is provided with horizontally disposed grate bars 8 for the support of the fire bed, and below the grate bars-the front wall of the furnace is provided with a doored openingv 9 for the removal of ashes, and above the grate bars with a doored opening 10for the introduction of fuel.

The chamber 2 is provided with horizontally disposed grate bars 11 which are set at a considerably higher level than thatk of the grate bars 8.

12 is an arched port in the partition wall 60 5 above the grate'barsll, the bottom of the port being preferably at a level with thetop of the grate bars 11.

The chamber 2 is connected at its top-*with the down flue 3 by means of the arched port 65 13 in the partition Wall 6. n

The flue 8 and thestack 4 are connected together at their bottoms bythe arched port 14 inthe partition wall 7.

15 represents a vertically disposed throat 70 or feed passage which is built up from-the ltop of the furnace with its'lower end communicating with the chamber-2 at its center and its upper end extending up vthrough-the floor above of the building, the floor bei-ng ,75

indicated at 16 in Fig. 1.

Thus the furnace may be placed in the basement or cellar of the building and the garbage and other refuse be introduced into the furnace from the first floor.

A tight cover 17 is provided for the upper end or mouth of the throat 14.

The front wall of the furnace is also provided with-a doored opening 18 leading into the chamber 2 above the grate bars 11 so that 85 the material to be consumed may be loaded into the furnace from the room in which the furnace is built.

Beneath the grate bars l1 the front wall of the chamber 2 is provided with a second i?? doored opening 19 for thereinoval of ashes.

The stack 4 is either continued up vertically to form the chimney, as in Fig. 3, or it may be connected at its top by, ar breaching `20 to the building chimney 21, as illustra-ted 9u in Fig. 5. Again the bottom of the stack 4 may be connected to the chimney 21 by a breaching-22.

In case of the modification illustrated in Fig. 6, it is evident that the breaching 22 may m0 be connected directly to the lower end of the flue 3, and thus the stack 4 may be omitted as a part of the furnace proper.

To prevent the load of material on the grate bars 11 from clogging the opening 12, I provide within the chamber 2 an inclined grate structure 23 whose lower end meets or rests on the grate bars 11 some distance away from the partition wall 5 while its upper end is supported by the partition wall.

The partition wall 5 on its chamber 2 surface is provided with two or more vertical and spaced apart ribs 24 extending upwardly from the top of the opening 12 to further prevent the garbage and other refuse in the chamber 2 from obstructing the free passage of the products of fuel combustion from the chamber 1 to the chamber 2. Y

The fire is maintained on the bars 8 in the fuel chamber 1 'and the garbage or other refuse is loaded on the grate bars 11 of the combustion chamber 2, either by dumping such material down the throat 15 or through the doored opening 18.

25 represents a doored clean-outv opening in the rear wall of the furnace to permit the removal of the ashes from the bottom of the down flue 3.

The products ofcombustion arising from the fuelV bed pass from the chamber 1 through the port 12 into the chamber 2 and burn and consume the material carried by the grate bars 11, the inclined grate 23 preventing the garbage or other refuse from clogging the port and the ribsV 24 providing for the sufficient escape upwardly of the smoke.

i The products of the combustion of the garbage and waste are reverberated in the chamber 2 and then pass through the port 13 into the down flue 3, and then descend in said iue to the bottom thereof, escaping into the stack 4 through the port 14, escaping up said stack or passing thence to the building chimney 21.

My improved garbage furnace has a number of marked advantages.

It is compact, containing in a small block the fuel and combustion chambers, and the down iiue and sta-ck, thusenabling the furnace to be built in a confined or limited space.

It may therefore be erected in the cellar or basement of a house or other building without materially interfering with other use or' occupancy /Vhat I desire to cla-im is 1. A garbage furnace comprising a fuel chamber and a combustion chamber for the garbage separated by a. partition wall, a fuel grate in the fuel chamber, a garbage grate at a higher level in the combustion chamber, the partition wall being provided chamber and a combustion chamber for the garbage separated by a partition wall, a fuel grate in the fuel chamber, a garbage grate at a higher level in the combustion chamber, the partition wall being provided with a port said combustion chamber guarding said port against obstruction. Y

2. A garbage furnace comprising a fuel labove said gr'ates, and a secondarygrate in 

